// var. 2121
public class Lab2 {
  public static void main(String[] args) {
  H a = new H();
  H b = new A();
  A c = new A();
  a.x11();
  b.x29();
  c.x4();
  a.x30();
  a.x28();
  a.x8();
  c.x39();
  a.x19();
  a.x16();
  a.x7();
  c.x6(a);
  a.x6(b);
  c.x6(c);
  }
}
previous : 9
previous : 13
